Search for dissertations about: "closed vessels"

Showing result 1 - 5 of 11 swedish dissertations containing the words closed vessels.

  2. 1. Fluid and Solid Particle Dynamics in Stirred Vessels

    Author : Mattias Ljungqvist; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; mixing time; pitched blade turbine; impeller modelling; stirred vessels; computational fluid dynamics; multi-fluid model; suspension of solids; phase-Doppler anemometry; laser Doppler anemometry; closed vessels;

    Abstract : The present thesis deals with the fluid dynamics of stirred vessels and particularly those that are to be used in conjunction with solids suspensions. Stirred vessels are very common in the process industry and large amounts of energy can be saved by optimising their operation. READ MORE

  4. 2. Some aspects of the design of stirred vessels

    Author : Mattias Ljungqvist; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; impeller discharge; mixing times; impeller displacement; CFD; turbulence; suspension; closed stirred vessels; LDA;

    Abstract : .... READ MORE

  5. 3. Creating clarity and managing complexity through co-operation and communication : The case of Swedish icebreaker operations

    Author : Magnus Boström; Jesper Andreasson; Cecilia Österman; Carl Hult; Johan Karltun; Linnéuniversitetet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; maritime safety; organization; human factors; closed-loop communication; Standard Marine Communication Phrases; misunderstanding; other-initiated repair; Sjöfartsvetenskap; Maritime Science;

    Abstract : Sea transportation is vital for the global economy, and the amount of seaborne trade is expected to increase in the future. In some areas, icebreakers are necessary for maintaining open shipping lanes all-year round and ensuring safe navigation. READ MORE

  6. 4. A resorbable device for ligation of blood vessels : development, assessment of surgical procedures and clinical evaluation

    Author : Odd Höglund; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Maintaining haemostasis during surgery is vital for a successful outcome. The objectives of this thesis were to develop a resorbable device, which would enable safe ligation and less surgical stress than the conventional method. For manufacturing of the device, the resorbable polymer polydioxanone was injection moulded. READ MORE

  7. 5. Osteoarthritis in temporomandibular joint internal derangement

    Author : Diana Paegle; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Temporomandibular joint; internal derangement; osteoarthritis;

    Abstract : Internal derangement of the temporomandibular joint is the most common diagnosis leading to joint surgery. Two variants of internal derangement exist, painful clicking and chronic closed lock. Painful clicking is characterized by no or minor arthritic changes. READ MORE